Home / 76,130.06-105,058.19-42,137.82

Finding the Fourth Proportional to 76,130.06, 105,058.19 and 42,137.82

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Solution

The fourth proportional to 76,130.06, 105,058.19 and 42,137.82 is: 58,149.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,130.06 : 105,058.19 = 42,137.82 : x
  2. Step 2: Convert to fraction form
    76,130.06/105,058.19 = 42,137.82/x
  3. Step 3: Cross multiply
    76,130.06x = 105,058.19 × 42,137.82
  4. Step 4: Simplify right side
    76,130.06x = 4,426,923,205.09
  5. Step 5: Solve for x
    x = 4,426,923,205.09/76,130.06
  6. Step 6: Final answer
    x = 58,149.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.